A moderate Republican senator sought broad bipartisan support Tuesday for a compromise to block gun purchases by some suspected terrorists, a day after the chamber split along party lines to derail far more sweeping proposals.

In the wake of last week’s fatal shooting on the Northern Arizona University campus, many are examining the state’s gun laws. With the exception of a handful of situations, NAU, the University of Arizona and Arizona State all ban weapons on their campuses. Arizona Public Radio’s Ryan Heinsius.